This drama is the best, the only reason it got low ratings is because the heroine didn't end up with the first hero. But from the beginning it is shown both the hero's and the heroine are the main characters equally. So the heroine can go either way. Many people didn't like how everyone didn't get a happy ending in this and only few got.

If you are a person who was not just into an interesting romantic plot, but also into story and character development of all the characters, this is a best kdrama.

Though few people say it is not an happy ending entirely, I would say it really is one way. You can call it as a satisfying ending. Each and every episode is really interesting and well written.

I have seen many kdrama with not so logical plot and worst acting got more than 8 as rating, I really don't understand how this series hasn't got above 8. I think most people like obvious written plot. Please watch and give it a chance, you will like this.